Ash dust eliminator



Patented Oct. 1, 1935 UNiTED STATES PATENT OFFICE 1 Claim.

My invention relates to new and useful improvements in an ash dust eliminator, and has for one o1" its objects to provide an exceedingly simple and effective device of this character which 5 will be light in weight whereby it may be readily handled in placing the same upon an ash recepttacle or when it becomes necessary to remove the receptacle after the same has been iilled with ashes.

Another object of the invention is to improve the construction of devices of this kind whereby the eliminator may remain in place on a receptacle in proximity to a heating appliance during the time any ashes may be dumped into the receptacle and the connection between the eliminator and the heating appliance being easily and quickly made during the time ashes are being removed from said heating appliance. v

Another object oi the invention is to provide means for forming a draft directly above the clinker and ash pit doors for taking away any ilying ash dust while the ashes are being removed or the re bed is being raked.

Another object of the invention is to provide an ash dust eliminator comprising a body having a iiange and rim to encircle the upper part of an ash receptacle, which body has a valve controlled chute leading thereto with a cone shaped top mounted on the upper end of the body and terminating in a circular outlet at the apex on which is rotatably mounted a conduit comprising a plurality of elbow sections, said conduit adapted to be swung about so that its free or outlet end will project into the nre-door of the heating appliance or assume a position away from the fire door to permit unobstructed access to the latter.

Another object of the invention is to provide means which will support the eliminator on different sized ash receptacles.

A further object of the invention is to provide, in combination with the eliminator, a hood of unique construction which will overlie the clinker and ash pit doorways when the eliminator is in operative position.

A still further object of the invention is to provide a hanger for connecting the outlet conduit of the hood with the eliminator conduit which will permit adjustments of the eliminator conduit and the hood relative thereto.

With these and other ends in view, this invention consists in thedetails of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail referring by numerals to the accompanying drawing forming a Dart of this application, in which:-

Fig. l is a plan view of an ash dust eliminator 5 constructed in accordance with my invention and shown in its association with a heating appliance which is conventionally illustrated.

Fig. 2 is a iront elevation of Fig. 1.

Fig. 3 is an enlarged vertical sectional view of 10 the eliminator per se.

Fig. l is an end view of the hanger for connecting the hood with the eliminator conduit.

Fig. 5 is a top View thereof.

Fig. 6 is a lower end vie-W of the hood. l5

In carrying out my invention as herein embodied, ii) represents any coal burning heating appliance herein conventionally illustrated and shown as provided with a smoke outlet pipe il,

a nre-doorway i2 which is closed by a door I3, 20 a clinker doorway normally closed by the door iii and an ash pit doorway l5 normally closed by the door I6. For purposes of illustration, a shaker bar Il is also shown which is used for shaking the grate of the heating appliance to dislodge 25 ashes or other heavy products of combustion.

An ash receptacle I8 is shown as situated in close proximity to the heating appliance and on top of this is mounted the ash dust eliminator i embodying my invention, and preferably compris- 30 ing a body 2i) having straight vertical sides, although the body otherwise may be of any desirable contour, but `preferably circular as illustrated. From the lower edge of the body extends an outwardly projecting ange 2| adapted to rest on 35 top of the ash receptacle i8 and about the outer edge of the flange is a downturned rim 22 which will surround the upper end of the ash receptacle and prevent accidental displacement of the eliminator from the receptacle. 40

From the upper end of the body 2@ extends the cone shaped top 23 terminating at the apex in a circular outlet or neck 24.

in the body of the eliminator is mounted an inclined chute 25 which slants downwardly and 45 inwardly, and should b-e of suncient dimensions to permit the insertion of a fire shovel.

Preferably the inner end of said chute 25 extends into the interior of the body and is beveled or of angular formation so that the lower 50 portion of the chute is spaced from the adjacent wall of the body a greater distance than the upper portion of said chute, and said inner end of the chute is normally closed by a hinged gravity actuated valve or closure 26. 55

On the neck 24 is rotatably mounted the eliminator conduit 2l. made up of any desirable number of sections 28, 29 and 30, each section preferably being an elbow, but if necessary, straight sections of pipe may be added. The

sections lof the conduit are rotatably and longitudinally adjustable whereby the parts may be positioned to permit the free end of the conduit to ent-cr straight into the Yfire doorway l2 when the conduit is swung to a position such as suggested in Figs. l and 2. With the conduit in this position, the draft through the heating appliance induces a draft through the eliminator and its conduit so that any dust caused by the dumping of ashes through the chute 25 will be drawn upward through the eliminator and conveyed throughY the conduit into, the heating appliance from which they will be carried oi through the smoke stack l! and the chimney withY which the smoke stack Vis connected.

After the ashes have been dumped into the Vreceptacle through the eliminator, the conduit 2l may be swung around out of the way so as not to interfere with access to the fire doorway i2 for coaling or other purposes. Y

In order that the eliminator may be mounted upon and supported by ash receptacles of smaller diameter than the interior diameter of the body of the eliminator, I place a rod 3l across the lower end of the eliminator body which with a portion of the fiange 2i will rest upon the upper edge of a smaller receptacle to permit use of the eliminator.

The devicenloeing portable, I provide handles 39 Yfor lifting and transporting the same.

The straight vertical walls of the body makes the eliminator self cleaning since there are no projections at the lower end of the body to accumulate Vor collect falling ashes. Y

Near the extreme free end of the eliminator conduit 2l is mounted a hanger 32 including a pair of rings 33 and 34 suitably joined together with one of them slipped over the end of the conduit 2l so that it can be moved longitudinally or rotated to obtain a desired adjustment, and in Ythe other ring ofV the hanger is mounted the inturned end 35 of a conduit 36 leading from the with Vsuoli a door and above the ash pit doorway l5 with the inturned end 35 of its conduit projecting into the fire-door parallel with the free end of the eliminator conduit 21;

When in use the draft through the heating 5 appliance Will create a draft through the hood and its conduit so that any ash dust rising from the raking of the heating appliance or the removal of cinders and ashes through the clinker doorway or through the ash pit doorway will 10 be caused to iioat toward and into the hood and be carried off in the same manner as the dust from the ash receptacle. This will prevent ash dust from iiying about and finally accumulating on .objects in the apartment where the heating 15 appliance is located and will also prevent the ash dust from Vbeing drawn through the hot air pipes or passing through cracks in the iloors to the living quarters.

Of course I do not wish to be limited to the 20 exact details of construction `herein shown and Vdescribed as these may be varied witlfnn the limits rotatably mounted on the first named section,

a third elbow Vconduit section telescopically and rotatably mounted'on the second named section, all of said sections producing a conduit the outer Y free end oi which is rotatable in a horizontal plane for movement into and out of the re 40 doorway of the heating appliance without shifting the ash receptacle or moving the body relative to said receptacle, a. chute carried by said body leading to the interior thereof, a hanger adjustably mounted on the free end of the con- 45 duit, a tapered hood having a concave wall to fit against the wall of the heating appliance above the clinker or ash pit door, and a conduit leading from the top of the hood and having a right angle upper end adjustablyV mounted in the hanger whereby said. hood is supported with the balance of theV apparatus on the ash receptacle with the outlet ends of both conduits in parallelism.

` GEORGE Z. SILL. 

